Home / 82,758,810.30-124,138,215.45-73,671,169.20

Finding the Fourth Proportional to 82,758,810.30, 124,138,215.45 and 73,671,169.20

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Solution

The fourth proportional to 82,758,810.30, 124,138,215.45 and 73,671,169.20 is: 110,506,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,758,810.30 : 124,138,215.45 = 73,671,169.20 : x
  2. Step 2: Convert to fraction form
    82,758,810.30/124,138,215.45 = 73,671,169.20/x
  3. Step 3: Cross multiply
    82,758,810.30x = 124,138,215.45 × 73,671,169.20
  4. Step 4: Simplify right side
    82,758,810.30x = 9,145,407,474,603,004
  5. Step 5: Solve for x
    x = 9,145,407,474,603,004/82,758,810.30
  6. Step 6: Final answer
    x = 110,506,753.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.